2012 Fiscal Year Final Research Report
Effects of aerosols, radon, and cosmic ray on concentration of small ions in the urban, maritime, mountain atmosphere
| Project/Area Number |
22510019
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
MIURA Kazuhiko 東京理科大学, 理学部第一部, 准教授 (00138968)
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| Co-Investigator(Kenkyū-buntansha) |
NAGANO Katsuhiro 東京理科大学, 理工学部, 講師 (40408703)
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| Co-Investigator(Renkei-kenkyūsha) |
KOBAYASHI Hiroshi 山梨大学, 大学院・医学工学総合研究部, 准教授 (20313786)
YASUDA Hiroshi 独立行政法人放射線医学総合研究所, 放射線防護研究センター, 上席研究員 (50250121)
UEDA Sayako 東京理科大学, 理学部, ポストドクトラル研究員 (00612706)
YAJIMA Kazuaki 独立行政法人放射線医学総合研究所, 福島復興支援本部環境動態・影響プロジェクト, 主任研究員 (20392243)
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| Project Period (FY) |
2010 – 2012
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| Keywords | イオン / エアロゾル / ラドン / 宇宙線 / 核生成 |
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| Research Abstract |
We have observed small ions, aerosol size distributions, radon concentrations, and intensity of cosmic rays in the urban, maritime, and mountain atmosphere. There is a negative relation between ion concentration and coagulation sink at all measured places. This suggests that concentration of small ions decreases by ion-aerosol attachment. There is a positive relation between ion concentration and wind speed over the ocean. This suggests that small ions are generated by bubble bursts of seawater.
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[Journal Article] Development of polarization optical particle counter to detect particle shape information2012
Author(s)
Kobayashi, H., Hayashi, M., Nakura, Y., Enomoto, T., Miura, K.,Takahashi, H., Igarashi, Y., Naoe, H., Nishizawa, T., Sugimoto, N., and Kaneyasu, N.
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Journal Title
Proc. SPIE 8526, Lidar Remote Sensing for Environmental Monitoring XIII
Pages: 852609
DOI
Peer Reviewed
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[Presentation] Biogeochemical linkage between atmosphand ocean in the eastern equatorial Pacific Ocean: Results from the EqPOS research cruise2012
Author(s)
Hiroshi Furutani, Yoichi Inai, Shuji Aoki, Hideyuki Honda, Yuko Omori, HiroshTanimoto, Toru Iwata, Sakyako Ueda, Kazuhiko Miura, Mitsuo Uematsu
Organizer
2012 AGU Fall Meeting
Place of Presentation
San Francisco, USA
Year and Date
2012-12-06
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[Presentation] Concentration of small ions measured at the center of Tokyo, at the summit of Mt. Fuji, and over the PaOcean2012
Author(s)
Kazuhiko Miura, Sakyaka Ueda, Nobuyori Nagaoka, Akihiko Fukawa, Katsuhiro Nagano, Hiroshi Kobayashi, Hiroshi Yasuda, Kazuaki Yajima, Hiroshi Furutani, Mitsuo Uematsu
Organizer
2012 AGU Fall Meeting
Place of Presentation
San Francisco, USA
Year and Date
2012-12-04
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[Presentation] Concentration of small ions measured at the center of Tokyo and at the summit of Mt. Fuji2012
Author(s)
KazuhikoMiura, Nobuyori Nagaoka, Asami Suzuki, Akihiko Fukawa, Katsuhiro Nagano, Asako Tamaki, Shinji Yamaguchi, Ueda, Sayako, Hiroshi Kobayashi, HiroshiYasuda
Organizer
Japan Geoscience UnionMeeting 2012
Place of Presentation
Makuhari, Chiba
Year and Date
2012-05-22
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